The goal of this documentation is to comprehensively explain the Node.js API, both from a reference as well as a conceptual point of view. Each section describes a built-in module or high-level concept.Where appropriate, property types, method arguments, and the arguments provided to event han...
child_process.execSync(): a synchronous version of child_process.exec() that will block the Node.js event loop. child_process.execFileSync(): a synchronous version of child_process.execFile() that will block the Node.js event loop.
Doing so allows batching of all writable.write() calls that occur within a given Node.js event loop phase. stream.cork(); stream.write('some '); stream.write('data '); process.nextTick(() => stream.uncork()); If the writable.cork() method is called multiple times on a stream, ...
DeAsync turns async function into sync, implemented with a blocking mechanism by calling Node.js event loop at JavaScript layer. The core of deasync is written in C++. Motivation Suppose you maintain a library that exposes a functiongetData. Your users call it to get actual data: ...
The Node.js test runner can be invoked from the command line by passing the --test flag: node --test copy By default, Node.js will run all files matching these patterns: **/*.test.{cjs,mjs,js} **/*-test.{cjs,mjs,js} **/*_test.{cjs,mjs,js} **/test-*.{cjs,mjs,js} **...
Node.js REPL 交互式解释器打开终端，键入node进入命令行交互模式，输入代码语句后立即执行并显示结果，例如：D:\Work\Code\NodeJs>nodeWelcome to Node.js v16.16.0.Type ".help" for more information.> console.log("Hello World");Hello WorldNode.js REPL(Read Eval Print Loop:交互式解释器) 表示一个...
Technical tutorials, Q&A, events — This is an inclusive place where developers can find or lend support and discover new ways to contribute to the community.
This Node.js ebook will help you to learn the basics of Node.js: non-blocking I/O, the event loop, modules, and the Node.js runtime environment.
Node.js v12.3.1 Documentationnodejs.org/api/events.html 大多数的Node.js核心API都是建立在一个惯用的异步事件驱动模型之上。一种可以发射事件的对象(emitters),导致一个函数对象(listeners)被执行。 例如:在每次发起一个链接时,net.Server会发射一个事件。每次文件打开时fs.ReadStream发射一个事件。每当数据...
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